Product fixing glue and sealing glue application structure and application method

Abstract

The present invention discloses a product fixing glue and sealing glue gluing structure and a gluing method thereof, wherein the product fixing glue and sealing glue gluing structure comprises a film conveying line, a gluing device arranged on the film conveying line, and simultaneously applying fixing glue and sealing glue to the film; a compounding device, receiving the product and conveying the product to the top of the film to be compounded with the film, and then conveying the compounded product and the film forward; the compounding device makes the film and the product mutually compounded and fixed at the position where the fixing glue is applied, while the position where the sealing glue is applied to the film does not contact the product. The present invention applies fixing glue and sealing glue to the film at the same time, and first compounds the fixing glue through the compounding device, thereby greatly improving the compounding efficiency of the product and the film, and can ensure the relative position of the fixing glue and the sealing glue, thereby improving the quality of the product.

Description

Technical Field

[0001] The invention relates to the field of disposable sanitary product processing, in particular to a product fixing glue and sealing glue applying structure and a gluing method thereof. Background Art

[0002] In the field of disposable sanitary products processing, single strip disposable sanitary products such as sanitary napkins and panty liners need to be packaged after processing. During packaging, the disposable sanitary products need to be adhered to the film first, then the film is folded, and finally the sealing part of the film is sealed. Between the disposable sanitary products and the film, intermittent glue dispensing is used for fixing, which is generally referred to as the fixed glue part. At the sealing part of the outer packaging, it is sealed by gluing, which is generally referred to as the sealing glue part. The existing processing method is to use the method of applying glue successively for gluing and sealing respectively, that is, first apply the fixing glue by a glue gun, and then fix the two sheets through the position of the fixing glue by a sealing device, and then apply the sealing glue by a glue gun, and then seal the position where the sealing glue is applied by a sealing device to complete the sealing. Through production, it was found that this method has the following problems: First, when the equipment is running at high speed, the relative position of the fixing glue and the sealing glue is difficult to guarantee, which affects the quality of the outer packaging. Second, because the sealing glue is applied at the end, the position accuracy of the sealing glue gun is particularly high, and online debugging is troublesome. If the position is slightly deviated, it may be applied to the disposable sanitary products, causing the outer packaging to be unable to be sealed. At the same time, it will also cause the disposable sanitary products to be unusable and produce waste. Third, the current sealing glue is applied by line glue, and the amount of glue applied is large, which increases the amount of glue used and increases the cost of the product. Summary of the invention

[0003] The purpose of the present invention is to provide a product fixing glue and sealing glue gluing structure and a gluing method thereof, so as to solve the problem that the gluing precision of the existing product fixing glue and sealing glue is low and unqualified products are easily produced in packaging.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a product fixing glue and sealing glue application structure, which is used to fix and seal the product and the packaging film, comprising:

[0005] Film conveying line, used for continuous conveying of film;

[0006] The glue applying device is arranged on the film conveying line and applies fixing glue and sealing glue to the film at the same time;

[0007] The composite device receives the product and conveys the product to the top of the film to be composited with the film, and then conveys the composited product and film forward; the composite device makes the film and the product squeeze and fix each other at the position where the fixing glue is applied, while the position where the sealing glue is applied on the film does not contact the product.

[0008] Specifically, the composite device includes a composite roller that rotates along its own axial direction for transporting products, a composite pressure roller that is located below the composite roller and presses the film toward the composite roller so that the film is pressed against the product on the composite roller; the composite roller and the composite pressure roller are pressed against each other at the position where the fixing glue is applied to the film, and are separated from each other at the position where the sealing glue is applied to the film.

[0009] In order to control the up and down movement of the composite pressure roller and ensure continuous pressure on the film and product during composite, the composite pressure roller is connected with a driving device for driving the composite pressure roller to approach or move away from the composite roller.

[0010] In order to provide a certain tension force for the film during compounding, a composite front guide wheel supported under the film is arranged on the film conveying route and before the film enters the composite pressure roller, and a composite rear guide wheel supported under the film is arranged after the composite pressure roller.

[0011] To prevent the film from contacting the composite roller at the location where the sealing glue is applied during transportation, the highest points of the composite front guide wheel and the composite rear guide wheel are located on the same horizontal line and lower than the highest point of the composite pressure roller when it is working.

[0012] In order to ensure the accuracy of product conveying, a product transfer roller is also provided to cooperate with the composite roller to transfer the product to the composite roller.

[0013] In order to reduce the amount of sealing glue applied and reduce costs, the glue applying device is a glue dispensing structure at the fixed glue position and a glue scraping structure at the sealing glue position.

[0014] The present invention also discloses a sizing method using the sizing structure, comprising the following steps:

[0015] S1: The fixing glue and the sealing glue are applied to the envelope by the glue applying device at the same time and transported forward;

[0016] S2: transferring the product to the composite device through the product transfer device;

[0017] S3: The product is transferred to the film through the product compounding device, and the product and the film are compounded at the position where the fixing glue is applied, and the product and the film are separated from each other at the position where the sealing glue is applied to the film, and the compounded product and the film are conveyed forward;

[0018] S4: Fold the film to place the product inside the film, and seal and fix the film with sealing glue.

[0019] Beneficial effects of the present invention: The present invention completes the gluing of the fixing glue and the sealing glue at the same time by setting a gluing device on the film conveying route, thereby ensuring the relative position of the fixing glue and the sealing glue, and then through the structural design of the composite device, the film position where the fixing glue is set is first composited with the product, and then the product and the film are conveyed to the next process for sealing. This structure well ensures the relative position of the fixing glue and the sealing glue, and can achieve high-speed operation of the equipment, thereby improving the processing efficiency of the product. The integrated design of the gluing device is more convenient to adjust than the separate setting of the fixed gluing device and the sealing gluing device, which greatly improves the quality of the product. The structure of the simultaneous gluing of the sealing glue and the fixed glue can change the sealing glue from the original line glue application method to the scraping glue application method, which greatly reduces the amount of hot melt glue used, thereby reducing production costs.

[0020] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the product of the present invention and the envelope in the unfolded state.

[0022] Figure 2 It is a structural schematic diagram of the present invention.

[0023] Figure 3 It is a schematic diagram of the cooperation between the composite roller and the composite pressure roller in the present invention.

[0024] Figure 4 It is a schematic diagram of the distribution of fixing glue and sealing glue applied by the glue applying device on the envelope in the present invention. DETAILED DESCRIPTION

[0025] Embodiment, a product fixing glue and sealing glue application structure, used for Figure 1 The product a and the film coating b shown are fixed at a fixed position and sealed at a sealing position. The product is a strip-shaped disposable sanitary product such as a quick-wrap sanitary napkin and a panty liner. The product fixing glue and sealing glue applying structure includes a film coating conveyor line 1 for continuously conveying the film coating. The film coating conveyor line 1 includes at least one group of film coating conveyor rollers 101. A glue applying device 2 is provided on the film coating conveyor line 1. The glue applying device 2 is provided with a fixing glue applying port and a sealing glue applying port. Fixing glue is applied to the film coating through the fixing glue applying port to form a fixing glue applying portion b1 on the film coating; sealing glue is applied to the film coating through the sealing glue applying port to form a sealing glue applying portion b2 on the film coating. The distribution of the fixing glue applying portion b1 and the sealing glue applying portion b2 is shown in FIG. Figure 4As shown. Since the same glue applying device 2 is used to apply the fixing glue and the sealing glue, the relative positions of the fixing glue and the sealing glue on the film can be guaranteed, and the accuracy of glue application can be improved. Moreover, the setting and adjustment of the glue applying device are more convenient than the glue application adjustment using two sets of glue applying devices. Since the same applying device is used to apply the fixing glue and the sealing glue, the sealing glue can be changed from the original line glue application method to the scraping glue application method, thereby greatly reducing the amount of hot melt glue applied and reducing production costs.

[0026] In order to solve the problem of simultaneous glue application and the need to separately fix, compound and seal the product and the film, a compound device 3 is provided after the glue application device 2. The compound device 3 transfers the product to the film, and makes the film and the product compound and fix each other at the fixing glue application part b1 to form a fixing part A, while the sealing glue application part b2 of the film does not contact the product, so that the film and the product are kept separated at the sealing glue position and transported forward. The position where the fixing glue is applied is the fixing glue application part b1, and the position where the sealing glue is applied is the sealing glue application part b2.

[0027] The specific structure of the composite device 3 includes a composite roller 301 that rotates along its own axial direction for transferring products, and a product transfer roller 4 that cooperates with the composite roller 301 to transfer products to the composite roller 301. The product transfer roller 4 and the composite roller 301 cooperate with each other to transfer products from the product transfer roller 4 to the composite roller 301. A composite pressure roller 302 that cooperates with the composite roller 301 to press the film toward the composite roller 301 so that the film and the product on the composite roller 301 are pressed together is arranged below the composite roller 301, and the film passes between the composite pressure roller 302 and the composite roller 301. In order to control the composite pressure roller 302 to cooperate with the composite roller 301, the composite pressure roller 302 is connected to a driving device 303 that drives the composite pressure roller 302 to approach or move away from the composite roller 301. The driving device 303 can drive the composite pressure roller 302 to move and provide continuous pressure to the composite pressure roller 302 when the composite pressure roller 302 cooperates with the composite roller 301 to press the envelope and the product. The driving device 303 is preferably, but not limited to, a driving cylinder.

[0028] The composite pressure roller 302 is a variable diameter structure, and the diameter of the position where the fixed glue is applied to the supporting film is large, and this section is defined as the composite pressure roller large diameter section 3021, and the diameter of the position where the sealing glue is applied to the supporting film is small, and this section is defined as the composite pressure roller small diameter section 3022. Figure 3This structure ensures that when the product and the film are composited and fixed at the fixed glue application part b1, the sealing glue position does not contact the composite roller 301, thereby preventing the sealing glue from sticking to the composite roller 301 during transportation. In order to further increase the gap between the film sealing glue position and the composite roller 301, the diameter of the position corresponding to the composite roller 301 and the composite pressure roller small diameter section 3022 is smaller than the diameter of the composite roller 301 and the composite pressure roller large diameter section 3021 matching, and the large diameter section of the composite roller 301 is defined as the composite roller large diameter section 3011, and the small diameter section of the composite roller 301 is defined as the composite roller small diameter section 3012.

[0029] In order to provide a certain tension force for the film during compounding, a composite front guide wheel 5 supported under the film is provided on the film conveying route and before the film enters the composite pressure roller 302, and a composite rear guide wheel 6 supported under the film is provided after the composite pressure roller 302. The highest points of the composite front guide wheel 5 and the composite rear guide wheel 6 are located on the same horizontal line and the horizontal line is lower than the highest point when the composite pressure roller 302 and the composite roller 301 work together, so as to further avoid the sealing glue from contacting the composite roller 301 when the fixing glue is compounded.

[0030] To facilitate adjustment of the height of the composite front guide wheel 5 and the composite rear guide wheel 6, the composite front guide wheel 5 and the composite rear guide wheel 6 are respectively mounted on an adjustment bracket 7, on which a vertical waist-shaped hole 701 is provided, and the adjustment bracket 7 is fixed to the fixing member below by bolts connected to the waist-shaped hole 701.

[0031] The method for applying glue to products and packaging films using the above-mentioned product fixing glue and sealing glue applying structure comprises the following steps:

[0032] S1: The fixing glue and the sealing glue are applied to the envelope by the glue applying device at the same time and transported forward;

[0033] S2: transferring the product to the composite device through the product transfer device;

[0034] S3: The product is transferred to the film through the product compounding device and the product and the film are compounded at the position where the fixing glue is applied to form a fixing part A, and the product and the film are separated from each other at the position where the sealing glue is applied to the film and the compounded product and the film are conveyed forward;

[0035] S4: Fold the film to place the product inside the film, and seal and fix the film with sealing glue.

[0036] In the step S1, the sealing glue is evenly coated on the packaging film by using a glue application method such as scraping glue.

[0037] The method can significantly improve the position of the fixing glue and the sealing glue when the product is compounded with the coating, and can increase the running speed of the equipment and improve the production efficiency.

[0038] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A product fixing glue and sealing glue application structure, used for fixing and sealing products and packaging films, characterized in that: include: Film conveying line, used for continuous conveying of film; The glue applying device is arranged on the film conveying line and applies fixing glue and sealing glue to the film at the same time; The composite device receives the product and conveys the product to the top of the film to be composited with the film, and then conveys the composited product and film forward; the composite device composites and fixes the film and the product to each other at the position where the fixing glue is applied, while the position where the sealing glue is applied to the film does not contact the product.

2. The product fixing glue and sealing glue application structure according to claim 1, characterized in that: The composite device includes a composite roller that rotates along its own axial direction for transporting products, a composite pressure roller that is located below the composite roller and presses the film toward the composite roller so that the film and the product on the composite roller are pressed together, and the composite roller and the composite pressure roller are pressed together at the position where the fixing glue is applied to the film, and are separated from each other at the position where the sealing glue is applied to the film.

3. The product fixing glue and sealing glue application structure according to claim 2, characterized in that: The composite pressure roller is connected to a driving device for driving the composite pressure roller to approach or move away from the composite roller.

4. The product fixing glue and sealing glue application structure according to claim 1, characterized in that: A composite front guide wheel supported under the film is arranged on the film conveying route and before the film enters the composite pressure roller, and a composite rear guide wheel supported under the film is arranged after the composite pressure roller.

5. The product fixing glue and sealing glue application structure according to claim 4, characterized in that: The highest points of the composite front guide wheel and the composite rear guide wheel are located on the same horizontal line and are lower than the highest point of the composite pressure roller when it is working.

6. The product fixing glue and sealing glue application structure according to claim 1, characterized in that: A product transfer roller is also provided to cooperate with the composite roller to transfer the product to the composite roller.

7. The product fixing glue and sealing glue application structure according to claim 1, characterized in that: The glue applying device is a glue dispensing structure at the glue fixing position and a glue scraping structure at the sealing glue position.

8. A method for applying product fixing glue and sealing glue, characterized in that: The sizing structure according to any one of claims 1 to 7 comprises the following steps: S1: The fixing glue and the sealing glue are applied to the envelope by the glue applying device at the same time and transported forward; S2: transferring the product to the composite device through the product transfer device; S3: The product is transferred to the film through the product compounding device, and the product and the film are compounded at the position where the fixing glue is applied, and the product and the film are separated from each other at the position where the sealing glue is applied to the film, and the compounded product and the film are conveyed forward; S4: Fold the film to place the product inside the film, and seal and fix the film with sealing glue.

9. The method for applying product fixing glue and sealing glue as claimed in claim 8, characterized in that: In the step S1, the sealing glue is evenly coated on the envelope by scraping glue.

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